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EP0113169A2 - Mélanges et procédés herbicides - Google Patents

Mélanges et procédés herbicides Download PDF

Info

Publication number
EP0113169A2
EP0113169A2 EP83306565A EP83306565A EP0113169A2 EP 0113169 A2 EP0113169 A2 EP 0113169A2 EP 83306565 A EP83306565 A EP 83306565A EP 83306565 A EP83306565 A EP 83306565A EP 0113169 A2 EP0113169 A2 EP 0113169A2
Authority
EP
European Patent Office
Prior art keywords
benazolin
ester
salt
component
ethofumesate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP83306565A
Other languages
German (de)
English (en)
Other versions
EP0113169A3 (fr
Inventor
Anthony Joseph Mayes
Bryan Leslie Rea
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer CropScience Ltd Great Britain
Original Assignee
Schering Agrochemicals Ltd
FBC Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schering Agrochemicals Ltd, FBC Ltd filed Critical Schering Agrochemicals Ltd
Publication of EP0113169A2 publication Critical patent/EP0113169A2/fr
Publication of EP0113169A3 publication Critical patent/EP0113169A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/60—1,4-Diazines; Hydrogenated 1,4-diazines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
    • A01N43/78—1,3-Thiazoles; Hydrogenated 1,3-thiazoles

Definitions

  • This invention concerns herbicidal compositions and methods.
  • this invention provides a herbicidal composition which comprises from 0.05 to 99% by weight in total of:
  • the invention provides a method of combatting weeds, which comprises applying to a locus infested or liable to be infested therewith, an effective amount of the two components (a) and (b).
  • each of the components (a) and (b) is known separately as a herbicide. When used in combination, however, the combination is synergistic.
  • component (a), or benazolin as component (b), is employed in the form of a salt, it is preferably an alkali-metal or alkaline earth metal salt, e.g. a sodium, potassium or calcium salt.
  • an ester it is preferably an alkyl ester e.g. where the alkyl group is of 1 to 4 carbon atoms, for example a methyl, ethyl, n-propyl, isopropyl or n-butyl ester. The ethyl esters of both are particularly preferred.
  • component (b) is benazolin, the weight ratio of (a):
  • Component (b) may comprise a combination of the specified active compounds, in which case they are preferably present in a weight ratio of benazolin to ethofumesate of 0.1-2:1.
  • component (b) comprises benazolin or ethofumesate alone.
  • the components (a) and (b) may be applied sequentially to the locus if desired, e.g. with one component being applied a few minutes, hours or up to 2 days before the second. They are preferably applied, however, as a composition comprising both.
  • compositions will normally be produced initially containing from 0.5 to 99%, preferably from 0.5 to 85%, and more usually from 10 to 50% by weight of the present compounds, which are diluted if necessary before application to the locus to be treated such that the total concentration of active ingredient in the formulation applied is from 0.05 to 5% by weight.
  • the carrier may be water, in which case an organic solvent may also be present, though this is not usually employed.
  • a flowable suspension concentrate may be formed by grinding the compound with water, a wetting agent and a suspending agent, e.g. xanthan gum.
  • the carrier may alternatively be a water immiscible organic solvent, e.g. a hydrocarbon which boils within the range 130-270°C, e.g. xylene, in which the compound is dissolved or suspended.
  • a water immiscible organic solvent e.g. a hydrocarbon which boils within the range 130-270°C, e.g. xylene, in which the compound is dissolved or suspended.
  • An emulsifiable concentrate containing a water immiscible solvent may be formed with a surface active agent so that the concentrate acts as a self-emulsifiable oil on admixture with water.
  • the carrier may alternatively be a water-miscible organic solvent e.g. 2-methoxyethanol, methanol, propylene glycol, diethylene glycol, diethylene glycol monoethyl ether, formamide or methylformamide.
  • a water-miscible organic solvent e.g. 2-methoxyethanol, methanol, propylene glycol, diethylene glycol, diethylene glycol monoethyl ether, formamide or methylformamide.
  • the carrier may alternatively be a solid, which may be finely divided or granular.
  • suitable solids are limestone, clays, sand, mica, chalk, attapulgite, diatomite, perlite, sepiolite, silicas, silicates, lignosulphonates and solid fertilizers.
  • the carrier can be of natural or synthetic origin or can be modified natural material.
  • Wettable powders soluble or dispersible in water may be formed by admixing the compound in particulate form with a particulate carrier or spraying molten compound on to the particulate carrier, admixing a wetting agent and a dispersing agent and finely grinding the whole powder mixture.
  • An aerosol composition may be formed by admixing the compound with a propellant, e.g. a polyhalogenated alkane such as dichlorofluoromethane, and suitably also with a solvent.
  • a propellant e.g. a polyhalogenated alkane such as dichlorofluoromethane, and suitably also with a solvent.
  • 'surface active agent' is used in the broad sense to include materials variously called emulsifying agents, dispersing agents and wetting agents. Such agents are well known in the art.
  • the surface active agents used may comprise anionic surface active agents, for example mono- or di-esters of phosphoric acid with a fatty alcohol ethoxylate, or salts of such esters, fatty alcohol sulphates such as sodium dodecyl sulphate, ethoxylated fatty alcohol sulphates, ethoxylated alkylphenol sulphates, lignin sulphates, petroleum sulphonates, alkylaryl sulphonates such as alkyl-benzene sulphonates or lower alkylnapthalene sulphonates, salts of sulphonated napthaleneformaldehyde condensates, salts of sulphonated phenolformaldehyde condensates, or more complex sulphonates such as the amide sulphonates, e.g. the sulphonated condensation product of oleic acid and N-methyl taurine or the dialkyl sulphosuccinates e
  • the surface active agents may also comprise non-ionic agents, for example condensation products of fatty acid esters, fatty alcohols, fatty acid amides or alkyl-substituted phenols with ethylene oxide, fatty esters of polyhydric alcohol ethers e.g. sorbitan fatty acid esters, condensation products of such esters with ethylene oxide e.g. polyoxyethylene sorbitan fatty acid esters, block copolymers of ethylene oxide and propylene oxide, acetylenic glycols such as.2,4,7,9-tetramethyl-5-decyn-4,7-diol, or ethoxylated acetylenic glycols.
  • non-ionic agents for example condensation products of fatty acid esters, fatty alcohols, fatty acid amides or alkyl-substituted phenols with ethylene oxide, fatty esters of polyhydric alcohol ethers e.g. sorbitan fatty acid esters, condensation products of
  • the surface active agents may also comprise cationic agents, for example alkyl- and/or aryl-substituted quaternary ammonium compounds such as cetyl trimethylammonium bromide, or ethoxylated tertiary fatty amines.
  • cationic agents for example alkyl- and/or aryl-substituted quaternary ammonium compounds such as cetyl trimethylammonium bromide, or ethoxylated tertiary fatty amines.
  • Preferred surface active agents include ethoxylated fatty alcohol sulphates, lignin sulphonates, alkyl-aryl sulphonates, salts of sulphonated napthaleneformaldehyde condensates, salts of sulphonated phenolformaldehyde condensates, sodium oleoyl N-methyltauride, dialkyl sulphosuccinates, alkyl phenol ethoxylates, and fatty alkyl ethoxylates.
  • compositions may contain one or more further pesticides, e.g. herbicides, fungicides or insecticides in addition to components (a) and (b).
  • further pesticides e.g. herbicides, fungicides or insecticides in addition to components (a) and (b).
  • component (b) is benazolin
  • a particularly preferred compound for use therewith is 3,6-dichloropicolinic acid or a salt, e.g. the ethanolamine salt, or a ester thereof.
  • component (b) is ethofumesate
  • a particularly preferred compound for use therewith is phenmedipham, i.e. methyl 3-m-tolyl- carbamoyloxyphenylcarbamate.
  • the present method and compositions are highly effective for the selective control of weeds in crops.
  • grass weeds e.g. couch grass (Elymus repens), blackgrass (Alopecurus myosuroides), ryegrass (Lolium perennel, annual meadowgrass (Poa annua), barren brome (Bromus sterilis), and wild oats (Avena fatua), and a wide range of broadleaved weeds including speedwells (Veronica s p p), chickweeR (Stellaria media), cleavers (Galium aparine), and mayweeds (Matricaria spp.).
  • component (b) is or includes benazolin
  • the crops in which the present method and compositions may be employed include oil seed rape, soybeans and peanuts.
  • component (b) is or includes ethofumesate
  • the crops in which the present method and compositions may be employed include potatoes and beet crops, e.g. sugar beet, red beet, fodder beet, spinach beet and alias.
  • the amount of (a) applied is preferably 0.05 to 2 kg/ha.
  • component (b) is benazolin the amount thereof applied is preferably 0.1 to 2 kg/ha, and where it is ethofumesate the amount thereof applied is preferably 0.5 to 4 kg/ha.
  • the compositions of the invention desirably contain the components (a) and (b) in a suitable ratio to enable their application at such rates.
  • compositions of the invention are preferably applied post-emergence of the crop.
  • Seeds of the plant species listed below were sown in 750 mm diameter plastic pots containing sterilised sandy loam. The pots were then watered and placed in a glasshouse until the plants had 2 to 3 true leaves. The plants then received a foliar spray of the compounds set out below, formulated as a solution in 1:1 by volume of acetone and the wetting agent polyoxyethylene (20 mols) monolaurate solution (2g per litre).
  • the concentration of the test compounds and volume of application were calculated to give the desired rate of application of the compound in 200 litres per hectare. After the periods indicated, the plants were visually assessed for percentage herbicidal response relative to an untreated control.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
EP83306565A 1982-11-23 1983-10-28 Mélanges et procédés herbicides Withdrawn EP0113169A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8233365 1982-11-23
GB8233365 1982-11-23
GB8233364 1982-11-23
GB8233364 1982-11-23

Publications (2)

Publication Number Publication Date
EP0113169A2 true EP0113169A2 (fr) 1984-07-11
EP0113169A3 EP0113169A3 (fr) 1985-03-13

Family

ID=26284475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83306565A Withdrawn EP0113169A3 (fr) 1982-11-23 1983-10-28 Mélanges et procédés herbicides

Country Status (2)

Country Link
EP (1) EP0113169A3 (fr)
AU (1) AU546387B2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445420A2 (fr) * 1990-02-25 1991-09-11 Bayer Ag Composition herbicide sélective contenant de l'éthofumésate, du phenmédiphame, du chloridazone ou du quinmérac en combination avec certains triazolinones
EP0456334A2 (fr) * 1990-04-12 1991-11-13 Schering Aktiengesellschaft Composition herbicide à activité synergique
WO2008075065A2 (fr) * 2006-12-21 2008-06-26 Agrovista Uk Ltd. Composition d'herbicide
WO2022253845A1 (fr) 2021-06-02 2022-12-08 Bayer Aktiengesellschaft Compositions comprenant de l'éthofumésate et un phytoprotecteur
WO2023012037A1 (fr) 2021-08-02 2023-02-09 Bayer Aktiengesellschaft Utilisation de compositions comprenant de l'éthofumésate et de la bixlozone dans des cultures de blé

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57131703A (en) * 1981-09-19 1982-08-14 Nissan Chem Ind Ltd Herbicide composition

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57131703A (en) * 1981-09-19 1982-08-14 Nissan Chem Ind Ltd Herbicide composition

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CENTRAL PATENTS INDEX, Basic Abstracts Journal, Section C: Agdoc, Week E 38, 17th November 1982, nr. 80.250, Derwent London, GB & JP-A-57 131 703 (NISSAN CHEM: IND:)(14-08-1982) *
THE PESTICIDE MANUAL, 6th edition 1979, B.C.P.C. Publications, pages 28, 46 Croydon, GB *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445420A2 (fr) * 1990-02-25 1991-09-11 Bayer Ag Composition herbicide sélective contenant de l'éthofumésate, du phenmédiphame, du chloridazone ou du quinmérac en combination avec certains triazolinones
EP0445420A3 (en) * 1990-02-25 1991-12-11 Bayer Ag Selective herbicidal composition containing ethofumesate, phenmedipham, chloridazon or quinmerac in combination with certain triazolinones
EP0456334A2 (fr) * 1990-04-12 1991-11-13 Schering Aktiengesellschaft Composition herbicide à activité synergique
EP0456334A3 (en) * 1990-04-12 1992-04-22 Schering Aktiengesellschaft Heribicidal composition with synergistic activity
WO2008075065A2 (fr) * 2006-12-21 2008-06-26 Agrovista Uk Ltd. Composition d'herbicide
WO2008075065A3 (fr) * 2006-12-21 2008-08-07 Agrovista Uk Ltd Composition d'herbicide
WO2022253845A1 (fr) 2021-06-02 2022-12-08 Bayer Aktiengesellschaft Compositions comprenant de l'éthofumésate et un phytoprotecteur
WO2023012037A1 (fr) 2021-08-02 2023-02-09 Bayer Aktiengesellschaft Utilisation de compositions comprenant de l'éthofumésate et de la bixlozone dans des cultures de blé

Also Published As

Publication number Publication date
AU2146583A (en) 1984-05-31
EP0113169A3 (fr) 1985-03-13
AU546387B2 (en) 1985-08-29

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

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Effective date: 19841210

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

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Owner name: SCHERING AGROCHEMICALS LIMITED

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Effective date: 19870717

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18D Application deemed to be withdrawn

Effective date: 19880917

RIN1 Information on inventor provided before grant (corrected)

Inventor name: REA, BRYAN LESLIE

Inventor name: MAYES, ANTHONY JOSEPH

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